Heel-tap trimmer



Jan. 13, 1931. SCHILDKNECHT 1,788,545

HEEL TAP TRIMMER Filed NOV. 28, 1927 [ward 02."

Patented Jan. 13, 1931 UNI-EDSTATES IEO SCHILDKNECH'I, or s'r. LOUIS, ivrrssouiu, 'ASSIGNOR 'ro muvnrs Machine, co1vr messes 'PANY, OF ST. LOUIS, MISSOURI, A GORPORATION.OF MISSOURI 1 HEEL-TA]? TRIMMER Application filed November 28, 1927.3 Seria1 No. 236,288

My invention relates to shoe working ma chinery, particularly to a heel tap trimming pair shops.

The main object of my invention is to protect the body of a shoeheel from being marred when the tap is applied thereto and is trimmed flush with the surface of the heel.

It is customary in shoe repairing to apply taps which are somewhat larger in area than the bottom of theheel and then to trim the surplus material from the edge of the tap, making the edge of the latter form a continuation of the heel surface. Heretofore,

the cutter used for this purpose has had its face covered by a collar which servedto re-, tain the cutter on its shaft and also served to prevent cutting of the body of the heel by. the cutter. Since the cutter and collar rotate at high speeds,-contact of the collar with the and which may be moved awayfrom the cut-v ter when it is desired to replace the cutter In the accompanying drawings which illustrate a selected embodiment of vention V Figure 1 is a front elevation'of a tap trimming cutter, the shaft on which it is mounted, a bearing for the shaft, a gauge, and my present new guard.

Figure 2 is an end elevation of the same parts.

Figure 3 is a top view of. the same parts.

Figure 1 is a detail section taken on the line 44 of Figure 1.

The operating shaft is indicated at 1, and is journalled in a suitable bearing 2 which may be applied to or form a part of the frame of the machine. A cutter 3, of familiar form, is mounted on the end of shaft 1, being secured in place by a collar 4 and a screw 5 which is inserted in the end of the shaft 1. A gauge 6 is slidably mounted on shaft 1 and my inby means of screw 7. device, especially adaptedfor use in shoe re- Mounted on bearing-2 is a two-part bracket 8-9 secured'together by means of a wing nut 10'. The upright leg 11' of bracket ele ment 9 mounts "my stationary guard which preferably consists of a vertical arm 12 and V an annular guard portion 13, adapted tobe FEc f positioned adjacent tothe' edge of the cutter '3. I Sufficient; play willbe' provided between screws 14' and the openings thereforin arm 12.soth at'the latter may be moved up and down, or back and forth, to secure the proper adj ustm'entof the guardrelative to the cutter whereupon 'screws 14 may be tightened to" frictionally retain'the guard in position. A" set screw 15 provided witha lock nut 16 is mounted on a lug 17' formed on bracketelement9 and forms a stop for-the guard so that pressure against the edge ofthe'guard "will be positively resisted. The screw and slot assembly of the. bracket elements 8 and 9, permit the guard to be'adjusted axially of the cutter and its shaft.

Figure3illustrates the application of a heel to the cutter,the body of the -heelH resting against guard 13 and :the tap bearing againstethe'forward face of gauge "6 and! having its edgein -contact with'the teeth of the cutter 3. =It will be seen-that there is no moving partadjacent theh'eel body which can injurethe latter. The guard provides a support for the heel, thereby enabling the workmen to trim the tap more accurately than has been the case'heretofore, when it was necessary for the workmen to maintain a space between the heel and the rotating collar previously used which extended to the periphery of the cutter.

Obviously the details'of thestructure d escribed may be varied without departing from. thespirit "of my'invention, and I contemplate the exclusive use of such modifications as come within the scope of my claims.

I claiun: I 1 1. In a devicefor trimming the-tap of a heel on a' shoe, a rotatable cutter, a cylindrical member having a smooth end projecting over the teeth of said cutter and adapted to engage the face of theheeltap to determine the width of a cut made by said cutter on the edge of the heel tap, and a guard mounted in spaced relation to said member and adjacent to the teeth of said cutter and adapted to engage and protect the body of the heel to which the tap is applied, said guardbeing flat across the axis of the cutter and free'from projections extending'a substantial distance away from, said cutter whereby the shoe shank may be 'projeotedacross said axis to trim the breast of the heel tap. 7 I

2. In a device for trimming the tap vof a heel on a shoe, a rotatable cutter, 'a gauge overlying the teeth of saidcutterand hav ing a smooth edge for engaging the face of a tap ona heel on a shoe, and :a stationary member spaced from said gauge'sur-faoe and including a guardadjacent to the teeth of said cutter for engagingthe body of :the" heel jecting through said bearing, a cutter mount- 7 signature this 18thday of November, 1927. 1 I LEO ;SCI-IILDKNECERT,v

to which the tap is-applied, said guard termt nating substantially'at the edge'of the cutter I 1 teeth and being relativelyvth in and'flat across the axis of the cutter anclfreer-from projections extending from the cutter wh ch would I I V interfere With the presentation of the breast v of the heel tap to the cutter. V

3. :In a device for trimmingthe tap of 2a heel on a shoe, a journalbearing, a'shaftzprio 7 j ecting through saidbearing,la 'cuttermount 1 ed on said shaft, abracket mounted *on sa-id V bearing and extending parallel with :sa-id shaft and terminating "abreast of the outer end of said cutter, and a stra ght relatively.

flatguarcl member secured to the outer end ofsaidbracketand projecting across'theaxis of said cutter with its edges aligned with the teeth of'sa'id cutter whereby a shoe shank may be projected acrosssaidaxis when the breast of the heel tap is being trimmed.

.4a In a -device for trimming the vtapof a heelon a shoe, a rotatable cutteryfa guard for the side :o'f-theshoe-heel comprising a relatively thinflatelement with its :outer edge adjacent to and substantiallyaligned :vv ith theedge of the cutter te'eth,"a support-arm yfor'said guard lying in substantially the-same planewitha portion projectinginvvardl-y over 7 3 said cutter, and means 'for mounting "said portion.

5; In a device for trimmingthe tap'of'a =heel=on a shoe, a journalbearing, a shaft projecting through saidbearing a cuttermount- .ed on said shaft, a cylindrical-edge gauge mounted on said shaft and adjustable longitudinally thereof and surrounding the inner -endsof the cutter-te'eth,:a bracket secured to said bearing and projecting over'said gauge and cutter, and a guard for the side of the shoe heel comprising *a flat bar secured to said bracket and extending therefrom in a 7 plane across theouter end of said cutter with its-edge adjacent to the edge of the cutter teeth.

6. In a device for trimming the tap of a heelon a shoe, a journal bearing, a shaft pro- 

